[Resolved] WPML + WooCommerce category base mismatch causing 404s on all product category URLs (SV default → ...

Background of the issue:
I am trying to resolve an issue where the Swedish (default) product category URLs on my WooCommerce site are incorrectly using the English category base '/collections/' instead of the Swedish '/product-category/' base. This issue started after updating the WooCommerce Shop page. Here is the earlier ticket for the same issue: https://wpml.org/forums/topic/split-found-sometimes-its-showing-404-error-for-english-version-of-categories/. The domain is hidden link. I have temporarily fixed the issue using a URL redirect in the .htaccess file: # If URL starts with /collections/ and is NOT the English path RewriteCond %{REQUEST_URI} ^/collections/ RewriteCond %{REQUEST_URI} !^/en/collections/ RewriteRule ^collections/(.*)$ /product-category/$1 [R=302,L].

Earlier Andrey https://wpml.org/forums/users/andrey-k/ - helped me to fix this issue.

Symptoms:
After updating the WooCommerce Shop page, all Swedish product category URLs started resolving against the English category base '/collections/' instead of the Swedish '/product-category/' base, resulting in 404 errors. The English category URLs under '/en/collections/' still work.

Questions:
How can I fix the issue of Swedish product category URLs using the English base without relying on .htaccess redirects?
Why did updating the WooCommerce Shop page cause the Swedish URLs to use the English category base?